Fertilization strategies during the growing season, learn the best time and method of fertilization!
Selection and use of nitrogen fertilizers.
Nitrogen fertilizer is one of the key elements that are indispensable for the growth of grapes, especially during the growing season. The right amount of nitrogen fertilizer plays a vital role in fruit expansion and increased yield. When choosing a nitrogen fertilizer, there are two types that can be considered: organic nitrogen fertilizer and chemical nitrogen fertilizer.
Organic nitrogen fertilizers, such as well-rotted organic fertilizers, are a natural source of nitrogen that provides both nitrogen and organic matter, and has a positive effect on soil improvement and protection. Organic nitrogen fertilizer can slowly release nitrogen to provide a continuous supply of nitrogen to the grapes, while the addition of organic matter helps to improve soil structure and improve water and fertilizer retention. During the grape growing season, the right amount of organic nitrogen fertilizer can not only meet the needs of the grapes, but also reduce the loss of nitrogen fertilizer.
Chemical nitrogen fertilizers such as urea are fast-acting nitrogen fertilizers, which can be quickly absorbed and utilized by grape roots to meet their growth needs. The main advantages of urea are high nitrogen content, fast fertilizer efficiency, and easy storage and application. During the grape growing season, the right amount of chemical nitrogen fertilizer can quickly supplement the nutritional needs of grapes and promote fruit expansion.
In addition to choosing the right type of nitrogen fertilizer during grape growth, the amount of nitrogen fertilizer must be adjusted according to the specific situation. The amount of fertilizer must be adjusted scientifically and reasonably according to the growth needs of grapes to prevent excessive fertilization from causing excessive growth of grapes and affecting the quality and yield of fruits. In addition, the application time of nitrogen fertilizer should also be reasonably arranged, and the time of nitrogen fertilizer application should be earlier during the grape growing period, and gradually decrease with the development of fruits.
Selection and use of phosphate fertilizers.
Phosphorus is another important element in the growth of grapes and plays an important role in fruit development and sugar accumulation. During the grape expansion period, the right amount of phosphate fertilizer can promote fruit expansion and increase sugar accumulation, thereby improving fruit quality and yield.
Choosing the right type of phosphate fertilizer is key to efficient use of phosphorus. Diammonium phosphate and diammonium phosphate are common chemical phosphate fertilizers that can be quickly absorbed and utilized by the vine roots. These two chemical phosphate fertilizers have high phosphorus content and obvious fertilizer efficiency, which can quickly replenish the phosphorus demand during the growing period of grapes. In addition, there is the option of applying compost or organic fertilizer containing phosphorus to meet the nutritional needs of the grapes.
When using phosphate fertilizers, care must be taken to apply them in an appropriate amount to avoid excessive phosphorus accumulation and waste. The application rate of phosphate fertilizer must be scientifically adjusted according to the actual growth situation and the phosphorus content of the soil to avoid phosphorus deficiency or excessive phosphorus. In addition, the timing of phosphate fertilizer application also needs to be noted, generally at the beginning of the grape growing season, to meet the needs of fruit growth and development.
Selection and use of potash fertilizers.
Potassium is an indispensable and important element in the growth of grapes and plays an important role in regulating fruit growth and sugar accumulation. During the grape growing season, the application of potassium fertilizer can promote fruit expansion, increase sugar content, and improve fruit quality and yield.
Choosing the right potash fertilizer is very important for grape growth. Potassium chloride and potassium sulphate are two common potassium-based chemical fertilizers that are rich in potassium and are quickly absorbed by grape roots. Both types of potash fertilizers are high in potassium and have a positive effect on fruit development and sugar accumulation. During the grape growing season, the right amount of potassium chloride or potassium sulphate can meet the grape's potassium needs.
When applying potassium fertilizer, it is also necessary to pay attention to the correctness of the amount of fertilizer applied to avoid excessive potassium accumulation and fertilizer waste. The amount of potassium fertilizer should be adjusted according to the growth needs of the grapes and the potassium content of the soil. In addition, the need for potassium in the grapes increases gradually during the growing season, so fertilization should be delayed as much as possible to meet the needs of the fruit.
Micronutrient supplementation and application.
In addition to nitrogen, phosphorus and potassium fertilizers, it is also necessary to pay attention to the application of trace elements during the grape expansion period. Grapes need the support of zinc, manganese, iron and other trace elements during the expansion period to ensure proper fruit expansion and nutritional balance. You can choose a full-action fertilizer or a specialized micronutrient fertilizer to supplement the micronutrients needed by the grapes. Total fertilizer is a compound fertilizer that contains a variety of trace elements that can comprehensively supplement the nutritional needs of grapes.
Fertilizers for trace elements, on the other hand, are more precise and can be tailored to the specific needs of the grapes. Depending on the results of the soil tests and the condition of the grapes, the right type of fertilizer and application method can be selected. When applying micronutrient fertilizers, it is also necessary to pay attention to the correctness of the application rate to avoid excessive nutrient accumulation. Although the micronutrient content is low, it is still necessary to control the amount of fertilizer applied in order to meet the needs of the grapes and maintain a nutrient balance.
Summary. When fertilizing grapes during the expansion period, the right amount of nitrogen, phosphorus, potassium and trace elements is very important. Nitrogen fertilizer can promote fruit expansion and increase yield;Phosphate fertilizers can increase the sugar accumulation of fruits;Potassium fertilizer can increase the sugar content of the fruit. Supplementation of trace elements can ensure the normal expansion and nutritional balance of fruits. In the fertilization process, adjustments need to be made according to the actual situation and soil characteristics to avoid over-fertilization and waste of fertilizer. It is best to conduct soil testing before fertilization to understand the nutrient content and pH of the soil and choose the right fertilizer. Ensuring the scientific and effective fertilization is the key to ensuring the normal development of grape fruit and increasing yield.